Comparison of outcomes following laparoscopic and open treatment of emergent small bowel obstruction: an 11-year analysis of ACS NSQIP

Contemporary Assessment of Adhesiolysis and Resection for Adhesive Small Bowel Obstruction in the State of New York

BACKGROUND

Adhesive small bowel obstruction (aSBO) is a common surgical problem, with some advocating for a more aggressive operative approach to avoid recurrence. Contemporary outcomes in a real-world setting were examined.

STUDY DESIGN

A retrospective cohort study was performed using the New York Statewide Planning and Research Cooperative database to identify adults admitted with aSBO, 2016-2020. Patients were stratified by the presence of inflammatory bowel disease (IBD) and cancer history. Diagnoses usually requiring resection were excluded. Patients were categorized into four groups: non-operative, adhesiolysis, resection, and 'other' procedures. In-hospital mortality, major complications, and odds of undergoing resection were compared.

RESULTS

58,976 patients were included. 50,000 (84.8%) underwent non-operative management. Adhesiolysis was the most common procedure performed (n = 4,990, 8.46%), followed by resection (n = 3,078, 5.22%). In-hospital mortality in the lysis and resection groups was 2.2% and 5.9% respectively. Non-IBD patients undergoing operation on the day of admission required intestinal resection 29.9% of the time. Adjusted odds of resection were highest for those with a prior aSBO episode (OR 1.29 95%CI 1.11-1.49), delay to operation ≥3 days (OR1.78 95%CI 1.58-1.99), and non-New York City (NYC) residents being treated at NYC hospitals (OR1.57 95%CI 1.19-2.07).

CONCLUSION

Adhesiolysis is currently the most common surgery for aSBO, however nearly one-third of patients will undergo a more extensive procedure, with an increased risk of mortality. Innovative therapies are needed to reduce the risk of resection.

Individualization of the best approach for adhesive small bowel obstruction

BACKGROUND

Laparoscopic postoperatives outcomes in adhesiolysis are promising but conversion and morbidity remains high. The objective of our study was to determine preoperative factors to individualize and select the most appropriate approach for each patient.

METHODS

Patients ≥18 years old undergoing emergent surgery for adhesive small bowel obstruction and internal hernias were evaluated. Bivariate and multivariate analysis were performed to investigate factors related to conversion to open surgery and to the type of adhesions.

RESULTS

Of 333 patients, 224 were operated by laparotomy and 109 by laparoscopy (conversion rate: 40%). Previous abdominal wall mesh, type of adhesions, bowel lesion, need for intestinal resection and laparoscopic skills were statistically related to conversion. In the multivariate analysis, complex adhesions (OR 4.3, 95% CI 1.5-12.2; P = 0.006), the need for intestinal resection (OR 14.16, 95% CI 2.55-78.68; P = 0.002), and non-advanced laparoscopy surgeons (OR 4.31, 95% CI 1.56-11.94; P = 0.005) were independent factors for conversion to open surgery. ASA III-IV, previous surgeries, previous abdominal mesh and previous adhesiolysis were related to complex adhesions. Previous laparoscopic surgery and internal hernia or closed loop in computed tomography were associated with simple adhesions as a cause of the obstruction. In the multivariate, previous adhesiolysis (OR 4.76, 95% CI 1.23-18.3; P = 0.023) and the findings on computed tomography were significantly related with the type of adhesion.

CONCLUSION

Some preoperative factors allow to individualize the surgical approach in the adhesive small bowel obstruction improving surgical outcomes.

Is laparoscopic surgery safe and feasible in acute adhesive ileus?

Although the classical surgical treatment of adhesive ileus is performed using the open method, laparoscopic surgery has recently been performed in some centers. This study aimed to discuss the feasibility and role of laparoscopic surgery in the treatment of adhesive small bowel obstruction. In this retrospective study, the data of 830 patients who were operated for ileus in Başkent University Faculty of Medicine, Ankara Hospital, Department of General Surgery between January 2011 and September 2022 were analyzed. Missing data and intraabdominal cancer-related ileus were accepted as exclusion criteria and 648 patients were excluded from the study. The development of adhesion-related ileus and completeness of the data were accepted as inclusion criteria. Data were compared between the 2 groups [open group (OG; 152 cases) and laparoscopic group (LG; 30 cases]). When the patient characteristics were evaluated, it was found that the history of previous abdominal surgery (P < .001) and the number of previous abdominal surgery (P < .001) were statistically significantly higher in OG. Operation time was significantly longer in the LG (P = .022). There were no statistically significant differences between the groups in terms of intraoperative bowel injury (P = .216), bowel resection (P = .284), and stoma creation (P = .331). OG had a significantly higher rate of Clavien-Dindo grade ≥ 3 serious complications (P < .001) and mortality rate (P = .045). The first gas out occurred significantly earlier in the LG (P = .014). Oral intake was initiated earlier in the LG (P = .004). The length of hospital stay was significantly shorter in the LG (P < .001). There was no significant difference between the groups in terms of postoperative ileus, readmission, and reoperation. Laparoscopic surgery can be safely performed for the treatment of selected patients with adhesive small bowel obstruction. In addition, it is advantageous in terms of postoperative recovery.

Open versus minimally invasive small bowel resection for Crohn's disease: a NSQIP retrospective review and analysis

INTRODUCTION

Many patients with Crohn's Disease will require surgical resection. While many studies have described outcomes following ileocecectomy, few have evaluated surgical resection of other portions of small bowel. We sought to compare open and minimally invasive surgery (MIS) approaches for small bowel resection excluding ileocecectomy of patients with Crohn's Disease using the National Surgical Quality Improvement Program (NSQIP) database.

METHODS

The NSQIP database was queried for patients with Crohn's disease or complications related to Crohn's disease who underwent segmental small bowel resection utilizing open or minimally invasive approaches between 2012 and 2018. Patients requiring ileocecectomy or diagnosed with ascites, disseminated cancer, pre-operative sepsis, ASA class 5, and patients requiring mechanical ventilation were excluded. The association of pre-operative variables including patient demographic information and comorbidities with surgical approach were examined using Fishers exact test. Intraoperative, and 30-day post-operative outcomes were compared between the groups using both univariate and multivariate logistical regression models. SAS was used for data analysis with p < 0.05 considered significant.

RESULTS

After exclusions, we found 1697 patients with Crohn's disease who underwent segmental small bowel resection, 1252 of whom underwent open surgery and 445 of whom underwent MIS. After adjusting for possible confounders with multivariable analysis, patients who underwent MIS had a lower incidence of wound events (surgical site, organ space, or deep wound infection, or dehiscence), post-operative bleeding, need for return to the operating room, and shorter total hospital length of stay despite longer operative times compared with open surgery.

CONCLUSIONS

This retrospective review of NSQIP shows that minimally invasive small bowel resection is associated with equivalent or improved morbidity over open surgery in select patients with small bowel Crohn's Disease. We show that in select patients minimally invasive small bowel resection can be safe and performed for patients with isolated small bowel Crohn's disease.

Feasibility of the Gastrografin Challenge for Adhesive Small Bowel Obstruction

Purpose: This retrospective study investigated the feasibility, diagnostic, and therapeutic advantages of the gastrografin challenge on patients with adhesive small bowel obstruction (ASBO). Methods: There were 125 patients reviewed who were admitted to the Department of General Surgery at a single institution (September 2018 to August 2019) with a diagnosis related to ASBO. The study population included 100 patients (114 cases) who had received initial conservative management. Patient characteristics and operation rates were compared between the gastrografin challenge success group and failure group, and operation rates and length of hospital stay were compared between the gastrografin challenge group and “non-challenge” group. Results: During the study period, 21 patients with ASBO underwent the gastrografin challenge. The challenge was successful in 17 patients where the bowel obstruction was resolved without the need for surgery. Among patients who failed the challenge, 2 patients underwent adhesiolysis and 2 patients were able to progress their diet avoiding surgery. In patients who underwent surgery (<i>n</i> = 2), the length of hospital stay was significantly shorter in the gastrografin challenge group compared with the “non-challenge” group sub analysis (<i>n</i> = 13 cases; 10.5 vs. 20 days, <i>p</i> = 0.038), indicating that the gastrografin challenge assisted rapid decision-making for surgery. No adverse events were reported for the 21 gastrografin challenges. Conclusion: In patients with ASBO, the gastrografin challenge is an accurate, safe method to determine the need for surgery. In addition, the gastrografin challenge may reduce the length of stay in patients who required surgery for ASBO resolution.

Does Laparoscopic Adhesiolysis Reduce the Risk of Small Bowel Obstruction Related Readmissions and Reoperations Compared to Open Adhesiolysis?

Purpose

The present study aimed to assess the safety and efficacy of laparoscopic adhesiolysis in decreasing recurrent episodes of small bowel obstruction (SBO) compared to that of the conventional open procedure.

Methods

Among 373 patients who visited our emergency department from January 2000 to July 2018 due to small bowel obstruction, 67 patients who underwent adhesiolysis were included in this study. Eighteen and 49 patients comprised the open adhesiolysis (OA) and laparoscopic adhesiolysis (LA) groups, respectively. Clinical demographics, computed tomography (CT) findings, laboratory results, and perioperative outcomes were compared. Further, the long-term follow-ups of SBO related re-admissions and re-operations were also compared.

Results

Preoperative baseline data, pain characteristics, laboratory findings, and ileus-related CT findings showed no significant difference between the two groups. LA was related to less blood loss and complications, along with early bowel movement recovery. Similarly, fewer SBO-related re-admissions [OA vs. LA=8 (44.4%) vs. 3 (6.1%), p=0.001] and re-operations [OA vs. LA=3 (16.7%) vs. 1 (2.0%), p=0.025] were observed in LA compared to OA.

Conclusion

LA is a safer and more feasible procedure for SBO treatment compared to OA. This procedure showed a reduction in SBO-related re-admission and re-operation rates.

Laparoscopy improves failure to rescue compared to open surgery for emergent colectomy

Emergent colectomy is performed in thousands of Americans each year and carries significant morbidity and mortality. Although laparoscopy has gained favor in the elective setting, its impact on failure to rescue has not been studied on a population level for emergent colectomy. The purpose of this study was to compare failure to rescue following laparoscopic versus open colectomy in the emergency setting. This was a retrospective cohort study of The American College of Surgeons National Surgical Quality Improvement Program. Adult patients undergoing emergent colectomy between 2005 and 2018 were selected and stratified into laparoscopic or open surgery groups using the Current Procedural Terminology codes. Propensity matching was performed based on the demographic and comorbidity data. Main outcomes were failure to rescue, mortality, overall morbidity, individual complications, and length of hospital stay. After matching, 11,484 cases were included for analysis, of which 3829 were laparoscopic. Overall, open colectomy conferred higher odds of failure to rescue (OR 1.71, 95% CI 1.42-2.08), mortality (OR 1.72, 95% CI 1.44-2.07), and morbidity (OR 1.73, 95% CI 1.60-1.88) vs laparoscopic cases. Open surgery significantly increased the risk of nearly all measured postoperative complications including return to operating room (OR 1.25, 95% CI 1.08-1.45), ventilator use > 48 h (OR 2.43, 95% CI 2.03-2.93), and septic shock (OR 2.34, 95% CI 1.97-2.80). Hospital length of stay was shorter for patients undergoing laparoscopic (10.4 days) vs open (12.3 days) colectomy (p < 0.0001). This study demonstrates the safety and efficacy of the laparoscopic approach for emergent colectomy vs open surgery. Laparoscopy was associated with improved complications rates, mortality, and failure to rescue, indicating that it is a promising option to improve patient outcomes during emergent colectomy.

Evaluation of laparoscopic surgery for small bowel obstruction and factors related to outcomes

Introduction

In recent years, laparoscopic surgery (LS) has been performed for small bowel obstruction (SBO). However, the indications and short-term and long-term outcomes of LS for SBO have not yet been established.

Aim

To evaluate the usefulness of LS for SBO compared to open surgery (OS), as well as to identify risk factors for poor outcomes after LS.

Material and methods

A total of 105 patients who underwent surgery for SBO were divided into OS (n = 64) and LS (n = 41) groups, and propensity score-matched analysis was used to compare the short-term and long-term outcomes of the groups. Risk factors for conversion to OS, postoperative complications, and intraoperative bowel injury in LS were also identified.

Results

The incidences of surgical site infection and postoperative ileus were significantly lower in the LS group. The incidence of recurrent bowel did not differ significantly between the two groups. Prior bowel obstruction was a risk factor for conversion of LS to OS (odds ratio (OR) = 24.79, p = 0.0025). Bowel diameter was a risk factor for postoperative complications (OR = 1.50, 95% CI: 1.01–2.22) and for bowel injury (OR = 1.33, 95% CI: 1.05–1.67).

Conclusions

LS for SBO had better postoperative short-term outcomes than OS. The outcomes of LS for SBO were significantly affected by prior bowel obstruction and bowel diameter.

Therapeutic Role of Water-Soluble Contrast Media in Adhesive Small Bowel Obstruction: a Systematic Review and Meta-Analysis

BACKGROUND

Adhesive small bowel obstruction (ASBO) is a common post-operative cause of hospitalisation. Water-soluble contrast media (WSCM) has become a popular non-surgical approach to treatment. However, previous reviews have concluded with conflicting results. This meta-analysis of randomised controlled trials (RCTs) re-evaluated the therapeutic value of WSCM in the management of ASBO.

METHODS

A comprehensive search of PubMed, Embase, and Cochrane databases was undertaken to identify RCTs from January 2000 to November 2018. The primary outcomes of length of stay and secondary outcomes of time to resolution, need for surgery, and mortality were extracted from the included studies. Quantitative pooling of the data was based on the random effects model.

RESULTS

Eight hundred and seventy-nine patients from the nine studies were included in the analysis. The administration of oral WSCM reduced the length of hospital stay (weighted mean difference - 0.15 days, P < 0.0001). However, WSCM does not reduce the need for surgery (relative risk 0.84, P < 0.009) and makes no difference to mortality rate (RR 0.99, P < 1.000). The definition of time to resolution of ASBO differed between the studies, ranging from time to passing flatus, to cessation of abdominal pain, and time to initiating oral intake. The significant differences in definition precluded meaningful quantitative pooling of this outcome.

CONCLUSIONS

This meta-analysis evaluating the therapeutic value of WSCM has shown that it does not reduce the need for operative management in ASBO or impact mortality rates. It shortens hospital stay by 0.15 days (3.6 h) which is not clinically significant.